Spring bed-bottom



(No Model.)

P. H. MELLON.

SPRING BED BOTTOM.

No. 331,645, Patented Dec. 1, 1885.

UNITED STATES PATENT @rrrcn.

PETER H. MELLON, OF ST. LOUIS, MISSOURI.

SPRlNG BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 331,645, dated December 1, 1885.

Application filed February 27, 1884. Serial No. 122.236. (No mode] .To all whom it may concern:

Be it known that 1, PETER H. MELLoN, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Spring BedBottorns, of which the following is a full, clear, and exact description, reference being had to the enema panying drawings, forming part of this specr fication.

This invention is an improvement in the manner ofconnecting together the double helical or spiral springs contained in a bed-bottom, and relates to that form of bed-bottom of springs in which adjacent rows having ends projecting at right angles thereto on one side and looped tie-rods are employed.

The form of double helical or spiral spring herein shown for the purpose of illustrating my present invention is similar to that illustrated in my Letters Patent No. 262,302, dated August 8, 1882, and the form of tie-rod is similar to that illustrated in Letters Patent to John G. Smith, of St. Louis, Missouri, No. 269,242, dated December 19, 1882, which also shows a form of spring suitable for use with my present invention. In both Letters Patent referred to, the projecting ends of the springs are engaged with the outer rings of the contiguous springs; but, in order to render such springs rigid at their connections, Smith threads on the looped tie-rod through the said outer rings and over the said ends.

The construction shown in my Letters Patent was found to be too weak, and that shown by the Smith Letters Patent was found to be too rigid. To obviate these disadvantages is the object of my'present construction, which consists in connecting the projecting ends to the loops of the tie-rods, so as to provide a hingeconnection intermediate of the rows of springs, as hereinafter described.

In another application, No. 173,272, filed August 1, 1885, I show, describe, and claim another form of hinge-connection intermediate of the rows of springs. Another advantage attendant on these intermediate hingeconnections is the ready means provided for separating the hooks and loops in taking the bed-bottom apart.

Figure l is a detail perspective View showing four of the springs connected together and I show the springs of double helical form,

which is preferred to the spiral as giving a broader bearing at the ends with an equal quantity of wire, and having more freedom of movement; but my improvement is equally applicable to spiral or single helical springs. The springs Aareuniformiu structure. Each end of the spring-wire is bent into a book, a, and a little distance from the hook passes through a loop, a, of the wire, formed by a return-bend of the same, the last coil, a", at top and bottom of the spring being thus reversed. The part of the wire a passing through the loop a is bent at an angle to prevent the wire slipping in the loop. The hooks a are used to connect the springs together at top and bottom-not, however, by direct connec- Lion with the coils a, as heretofore, but by booking upon a wire, 13, that engages with a line of coils. The wires 13 may extend in any direction in the plane of the top and bottom of the bed, and may be attached at the ends I) to any suitable frame, the attachment being made in any suitable manner. The wires may be supposed to extend transversely across the bed and to be attached to metal frames 0 by coiling the wire around the frames. WVhere the wire runs past any spring, it hasa V-shaped loop or bend, 11, forming a projection to engage a coil, a and to be engaged by the hook (I, of theadjoining coil, the parts a andb forming a hook-and-eye connection between the coils, and, as combined, hinging the springs together at top and bottom. Thus it will be seen that the springs are stayed from both longitudinal and transverse displacement at both ends,in one direction by the connection of the coils of, hooks a, and loops 1), and in a direction transverse thereto by the tie rods or wires B. At the same time the springs have free vertical movement, as there is no rigid connection between the book a and coil a of the adjacent spring, as has sometimes been the case.

I do not claim, broadly, the form of spring nor the tie-rods B with loops 6, for these are old; but I am not aware that they have been loops independent of theloop-rings, the hooks Io and loops forming hinge-connections intermediate of the rows of springs,substantia1ly as set forth.

PETER H. MELLON.

Witnesses:

SAML. KNIGHT, BENJN. A. KNIGHT. 

